ADVANCED ENDOSCOPY

Sessile serrated lesion clearly delineated after the use of acetic acid

Here we explore complex procedures—advanced polypectomy, ESD, ERCP, EUS, and tissue ablation—with a focus on when to choose each approach, step-by-step technique, device choice and electrosurgical settings, and prevention/management of complications. Content includes annotated real cases, decision pathways, and nursing checklists to translate advanced skills into safe everyday practice.

Proximal esophagus stricture

A 72-year-old female with progressive dysphagia over two years. Endoscopy revealed a 5 cm proximal esophageal stenosis that could not be traversed with a standard gastroscope; a 5.8 mm pediatric gastroscope was used to pass the segment. Biopsies were negative for malignancy but positive for Candida. A repeat endoscopy is planned to assess healing and evaluate for possible esophageal lichen planus.

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